Sash construction



June 10 195g L. J. JANNETTE 2,837,784 sAsH CONSTRUCTION Filed Nov. 30,1954 MM5/vra@ [wwf/vac J J/v/vfrrf United States Patent SASHCONSTRUCTION Lawrence J. Jannette, St. Paul, Minn.

Application November 30, 1954, Serial No. 472,067

2 Claims. (Cl. 1Z0-56.4)

This invention relates to sash construction and particularly to sashhaving wooden frame members covered on their outer and inner surfaceswith suitable sheet metal.

It is an object of my invention to provide a sash of Vthe classdescribed having inexpensive wooden frame members, the outer and innersurfaces of which are'cov ered and protected by separate and spacedsheet' metal members whereby the transmittal of heat through the framemembers of the sash is minimized.

Another object is to provide in a sash of the class described novelmeans for holding the window pane or panes in place in the frame,whereby the panes may be installed or replaced from the inside of thebuilding without the use of putty or like sealing means.

A particular object is to provide such a sash with improved means forlfastening a glass pane in the frame comprising channel shaped resilientcomprcssible members embracing the margins of the pane, confined incontact with a shoulder on the frame and resilient metal stripsconfining the channel shaped members and pane under lateral compression.

My invention also includes certain other novel features of constructionwhich will be described and claimed in the following specication andclaims.

Referring to the accompanying drawing which illustrates, by way ofexample and not for the purpose of limitation, a preferred embodiment ofmy invention:

Figure l is a fragmentary elevational view showing the outer side of oneof my improved sash;

Fig. 2 is a similar elevational view showing the inner side of the sash;

Fig. 3 is a typical cross sectional view showing one of the framemembers and covering sheet metal members, together with the coactingfastening and sealing means for the glazing panel or pane, and

Fig. 4 is a section similar to Fig. 3, showing a slightly modified formin which two panes are mounted in spaced parallel relation in the sash.

As best shown in Fig. 3, my improved sash has a frame comprising woodenmembers 5 which may be secured together at the corners of the frame inany conventional or suitable manner. Each of the frame members 5 isformed with a rabbeted inner margin providing a shoulder 6 extendingaround the inner margin or edge, preferably at or near the outer side ofthe frame. Also formed in each frame member 5 is a reentrant groove 7spaced inwardly of the shoulder 6 to receive fastening members for thepane. Relatively shallow grooves 8 and 9 are formed in the outermarginal surfaces of each of the frame members 5.

Covering the normally outer side of each of the frame members 5 is asheet metal member indicated generallyv by the numeral 10. This memberis of subtantially channel shape so that it partially covers both theinner and outer edge or marginal surfaces of the member 5 and has acontinuous ange 11 formed to engage the member 5 in the groove 9.Extending along theinner margin of the member is a flange 12 whichprojects at right angles r-r ICC to the shoulder 6 for engagement withthe pane sealing member hereinafter described. The normally innersurfaces of each of the members 5 is also covered by a substantiallychannel shaped sheet metal member 13 having a flange 14 along its outermargin for engagement with the groove 8. The member 13 is formed with asecond flange 15 which projects into the groove 7 formed in the member5.

As shown in Fig. 1, the horizontal and vertical mem-bers 10 may beformed with mitered ends 10a at the several corners of the sash andthese members may be secured to the wooden frame members 5 near eachcorner by means of nails or other suitable fastening members 16. In asimilar manner, the horizontaland vertical members 13 (Fig. 3) may besecured to the wooden frame members at each corner by fastening members17.

A glass or other suitable pane 18 fits in the sash in overlappingrelation to the shoulders 8. Embracing each of the margins of this paneis a channel shaped resilient, flexible member 19 preferably constructedfrom compressible rubber or rubber-like material. This member is formedat its normally outer side with a groove to receive the flange 12 of thesheet metal member 10 and is adapted to be held under compression bymeans of a resilient sheet metal strip 20 having a marginal wedgeportion 20a fitting snugly in the groove 7. When held in place in thegroove 7 the projecting portion of the member 20 presses the resilientsealing member 'r9 against the pane 18 so that this sealing member andthe pane are held under compression against the shoulder 6.

In the modification shown in Fig. 4 a second pane 21 is mounted inparallel relation to the pane 18 and is held at its margins in channelshaped resilient members 22 similiar to the members 19. Gtherwise, theconstruction shown in Fig. 7 is similar to that shown in Fig. 3.

Since the wooden frame members 5 are covered and protected by the sheetmetal members, wood of a relatively low grade may be used in theconstruction of the main frame members and painting is unnecessaryeither for enhancing the appearance of the sash or to preserve thewooden members. Inexpensive light gauge metal may be used in theconstruction of the members 10 and 13, thereby further reducing the costof the sash compared with conventional metal sash or those depending onthe rigidity and strength of the metal to impart the required strengthto the sash. The metal members 10 and 13 are preferably constructed fromstainless steel or aluminum or other corrosion resistant metal.

By spacing apart the sheet metal members 10, covering the outer side ofthe wooden frame from the inner side covering members 13, both at theouter 4and inner edges of the frame members, I prevent the conduction ofheat directly between these metal members which are subjectedrespectively to outside and inside tempferatures. This results inincreasing the heat insulating value of the frame to a value comparablewith that of an all wood frame, thereby` affording improved insulationas compared with construction wherein metal members embrace the woodmembers on all sides,A or as compared to all metal sash construction.

My improved construction is further advantageous in that the panes ofglass may be mounted in the sash quickly and easily by the use of theresilient channel shaped members 19 and 22 and readily removable andinsertable metal spring strips 20. The latter are readily removable andinsertable from the interior of the building so that the glass pane maybe installed and replaced with a. minimum of effort. A furtheradvantageous feature of my invention resides in the fact that the sheetmetal memlbers so reinforce the wooden frame members that the crosssection of all sash members may be reduced, thereby making it feasibleto provide a maximum of glass area for a Window of any given size.

l claim:

1. Sash construction comprising Wooden frame members joined together toform a substantially rectangular frame and formed with inner marginalshoulders and inner marginal grooves extendingin spaced parallel rela-ytion to said shoulders, each of said frame members being formed withspaced parallel grooves in its outer margin,v a substantially channelshaped sheet metal member covering the inner side of each of said framemembers and formed with flange-s engaging the frame member in said innermarginal groove and in one of said outer marginal grooves respectively,a second substantially channel shaped sheet metal member covering theouter side of each of said wooden frame members and formed with a flangeengaging the wooden frame member in the other of said outer marginalgrooves, said second sheet metal members eing spaced from said firstmentioned, substantially channel shaped, sheet metal members along theouter and inner margins of the wooden frame members, a pane tting insaid frame between said inner marginal shoulders and grooves, resilientcompressible sealing means embracing the margins of said pane adjacentto said shoulder and means conning the pane and sealing means undercompression against said shoulder.

2. Sash construction comprising wooden frame members joined together toform a substantially rectangular frame and formed with inner marginalshoulders and inner marginal grooves extending in spaced parallelrelation to said shoulders, each of said frame members being formed withspaced parallel grooves in its outer margin, a substanti ally channelshaped sheet metal member covering the inner side of each of said framemembers and formed with ianges engaging the frame member in said innermar* ginal grooves and in one of said outer marginal groovesrespectively, a second substantially channel shaped sheet metal membercovering the outer side of each of said Wooden frame members and formedwith a ange projecting from said shoulder and a second flange engagingthe wooden frame member in the other of said outer marginal grooves, apane fitting in said frame between said inner marginal shoulders andgrooves, resilient compressible sealing mean embracing the margins ofsaid pane adjacent to said shoulder and confined on the frame byengagement with said ange projecting from said shoulder and resilientsheet metal strips confined in said inner marginal grooves andprojecting therefrom to conne the pane and sealing means undercompression against said shoulder.

References Cited in the tile of this patent UNITED STATES PATENTS919,887 Kohler April 27, 1909 2,557,412 Clements lune 19, 1951 2,607,960Olsson Aug. 26, 1952

